Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
Perfect Game: Bowling Scores
Perfect Game is a tenpin bowling player’s assistant with powerful instruments for result analysis.
$8.99 · In-app purchases
PRICE
$8.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
9 ratings · Top 30%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Perfect Game: Bowling Scores: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Implement a clear bottom tab navigation with labeled icons.
Assumption to check: Users find it hard to navigate between screens
Validate with people who use this workflow before building.
Hypothesis 2
Offer more detailed stats and graphs showing player performance.
Assumption to check: Limited analytics features
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing options to compete with friends.
Assumption to check: No social features for sharing scores
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profiles and game settings.
Assumption to check: Lacks customization options
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Perfect Game is a tenpin bowling player’s assistant with powerful instruments for result analysis. No matter what your bowling skill level is, you will learn Perfect Game is a great tool that will make your favourite game even more exciting. With Perfect Game you can: • Record and collect game data: from just a final score to delivery and target board numbers of every single shot; the ball used; number of lanes you play the game on; the center you play at. • Learn your spare conversion rates for any pin layouts. • Analyze your performance growth over time using a Time/Score graph. • Easily save and track long time events splitting them in series and adding new games at any moment. • Quickly navigate through your games history with the Smart Lists feature building custom lists or charts of collected games and events. • Save personal comments on different aspects of the game. • Share your results with other people via e-mail. No hard reading text lists! Perfect Game renders games as standard score sheets. Retina display support. Official site: http://www.perfectgameapp.com Complete app description: http://www.perfectgameapp.com/manual Promotional video: http://www.perfectgameapp.com/video
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
React Navigation
AsyncStorage
Victory Native
React Native Share
BUILD KIT DIFFICULTY
Intermediate
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
